What is the main function and purpose of the Apache Kafka messaging system?

Apache Kafka is a distributed messaging platform designed for processing real-time data streams. Kafka's main function is to provide high-performance, scalable, and fault-tolerant message transfer between systems.

Kafka is used for:

• Collecting and transmitting logs and events in real-time.
• Building stream processing systems.
• Integrating various services and microservices through message exchange.

Kafka operates on a publish-subscribe principle, where producers publish messages to topics, and consumers read them asynchronously. Thanks to message storage on disk and replication, Kafka ensures reliability and the ability to re-read data.

Thus, Kafka serves as a link for transmitting large volumes of data with minimal delay and high reliability.